/*
 * Copyright 2011 www.pretty-tools.com
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


#include "stdafx.h"
#include "InterfaceFinder.h"


// CInterfaceFinder

CInterfaceFinder::CInterfaceFinder()
{
    ATLTRACE( _T("CInterfaceFinder::CInterfaceFinder()\n") );
}

CInterfaceFinder::~CInterfaceFinder()
{
    ATLTRACE( _T("CInterfaceFinder::~CInterfaceFinder()\n") );
}


STDMETHODIMP CInterfaceFinder::Implements(IDispatch* pObj, BSTR bsIID, VARIANT_BOOL* pRet)
{
    if (!pObj || !bsIID || !*bsIID)
        return E_INVALIDARG;
    if (!pRet)
        return E_POINTER;

    IID iid = __uuidof(0);
    RETURN_FAILED(IIDFromString(bsIID, &iid))

    CComPtr<IUnknown> pInterface;

    *pRet = ToVariant(SUCCEEDED(pObj->QueryInterface(iid, (void**)&pInterface)));

    return S_OK;
}
